Usenet 1994 January/usenetsourcesnewsgroupsinfomagicjanuary1994.iso/sources/unix/volume7/make/main.c

C/C++ Source or Header | 1986-12-02 | 4.2 KB | 223 lines

/*
 *    make [-f makefile] [-ins] [target(s) ...]
 *
 *    (Better than EON mk but not quite as good as UNIX make)
 *
 *    -f makefile name
 *    -i ignore exit status
 *    -n Pretend to make
 *    -p Print all macros & targets
 *    -q Question up-to-dateness of target.  Return exit status 1 if not
 *    -r Don't not use inbuilt rules
 *    -s Make silently
 *    -t Touch files instead of making them
 *    -m Change memory requirements (EON only)
 */

#include <stdio.h>
#include "h.h"

#ifdef unix
#include <sys/errno.h>
#endif
#ifdef eon
#include <sys/err.h>
#endif
#ifdef os9
#include <errno.h>
#endif


#ifdef eon
#define MEMSPACE    (16384)
#endif


char *            myname;
char *            makefile;    /*  The make file  */
#ifdef eon
unsigned        memspace = MEMSPACE;
#endif

FILE *            ifd;        /*  Input file desciptor  */
bool            domake = TRUE;    /*  Go through the motions option  */
bool            ignore = FALSE;    /*  Ignore exit status option  */
bool            silent = FALSE;    /*  Silent option  */
bool            print = FALSE;    /*  Print debuging information  */
bool            rules = TRUE;    /*  Use inbuilt rules  */
bool            dotouch = FALSE;/*  Touch files instead of making  */
bool            quest = FALSE;    /*  Question up-to-dateness of file  */


void
main(argc, argv)
int            argc;
char **            argv;
{
    register char *        p;        /*  For argument processing  */
    int            estat = 0;    /*  For question  */
    register struct name *    np;


    myname = (argc-- < 1) ? "make" : *argv++;

    while ((argc > 0) && (**argv == '-'))
    {
        argc--;        /*  One less to process  */
        p = *argv++;    /*  Now processing this one  */

        while (*++p != '\0')
        {
            switch(*p)
            {
            case 'f':    /*  Alternate file name  */
                if (*++p == '\0')
                {
                    if (argc-- <= 0)
                        usage();
                    p = *argv++;
                }
                makefile = p;
                goto end_of_args;
#ifdef eon
            case 'm':    /*  Change space requirements  */
                if (*++p == '\0')
                {
                    if (argc-- <= 0)
                        usage();
                    p = *argv++;
                }
                memspace = atoi(p);
                goto end_of_args;
#endif
            case 'n':    /*  Pretend mode  */
                domake = FALSE;
                break;
            case 'i':    /*  Ignore fault mode  */
                ignore = TRUE;
                break;
            case 's':    /*  Silent about commands  */
                silent = TRUE;
                break;
            case 'p':
                print = TRUE;
                break;
            case 'r':
                rules = FALSE;
                break;
            case 't':
                dotouch = TRUE;
                break;
            case 'q':
                quest = TRUE;
                break;
            default:    /*  Wrong option  */
                usage();
            }
        }
    end_of_args:;
    }

#ifdef eon
    if (initalloc(memspace) == 0xffff)  /*  Must get memory for alloc  */
        fatal("Cannot initalloc memory");
#endif

    if (strcmp(makefile, "-") == 0)    /*  Can use stdin as makefile  */
        ifd = stdin;
    else
        if (!makefile)        /*  If no file, then use default */
        {
            if ((ifd = fopen(DEFN1, "r")) == (FILE *)0)
#ifdef eon
                if (errno != ER_NOTF)
                    fatal("Can't open %s; error %02x", DEFN1, errno);
#endif
#ifdef unix
                if (errno != ENOENT)
                    fatal("Can't open %s; error %02x", DEFN1, errno);
#endif
#ifndef os9
            if ((ifd == (FILE *)0)
                  && ((ifd = fopen(DEFN2, "r")) == (FILE *)0))
                fatal("Can't open %s", DEFN2);
#else
                fatal("Can't open %s", DEFN1);
#endif
        }
        else
            if ((ifd = fopen(makefile, "r")) == (FILE *)0)
                fatal("Can't open %s", makefile);

    makerules();

    setmacro("$", "$");

    while (argc && (p = index(*argv, '=')))
    {
        char        c;

        c = *p;
        *p = '\0';
        setmacro(*argv, p+1);
        *p = c;

        argv++;
        argc--;
    }

    input(ifd);    /*  Input all the gunga  */
    fclose(ifd);    /*  Finished with makefile  */
    lineno = 0;    /*  Any calls to error now print no line number */

    if (print)
        prt();    /*  Print out structures  */

    np = newname(".SILENT");
    if (np->n_flag & N_TARG)
        silent = TRUE;

    np = newname(".IGNORE");
    if (np->n_flag & N_TARG)
        ignore = TRUE;

    precious();

    if (!firstname)
        fatal("No targets defined");

    circh();    /*  Check circles in target definitions  */

    if (!argc)
        estat = make(firstname, 0);
    else while (argc--)
    {
        if (!print && !silent && strcmp(*argv, "love") == 0)
            printf("Not war!\n");
        estat |= make(newname(*argv++), 0);
    }

    if (quest)
        exit(estat);
    else
        exit(0);
}


usage()
{
    fprintf(stderr, "Usage: %s [-f makefile] [-inpqrst] [macro=val ...] [target(s) ...]\n", myname);
    exit(1);
}


void
fatal(msg, a1, a2, a3, a4, a5, a6)
char    *msg;
{
    fprintf(stderr, "%s: ", myname);
    fprintf(stderr, msg, a1, a2, a3, a4, a5, a6);
    fputc('\n', stderr);
    exit(1);
}